John phin



B. T. TRIMMER.

-Pa tented April 3, 1855.

Grain Cleaner.

a. Fergus. MW WM. 0, c

.uToallwhomz'tmay concern." 1 :Be it known that I, BE JAMIN MER,.ofParma,in the'county ofMonroe and State of NewYo-rk, have inventedcertain new and useful Improvements in scouring \Machines for CleansingGrainy and I doj Bf. T. TRIMMER, on PARMA, NEW YORK.

GRAIN-CLEANER.

{Specification of Letters Patent No.-12,657, dated. Apri1'3, 1855 T.Talia-g herebydeclarethatthe. following is a ifulh and, exactdescription? thereof, reference be- 1 1 ing hadto theaccompanyingdrawings, mak-j ing part of this specification, andto'g thelet. Wtersof reference marked thereon, and of said Figure 1 is anelevation of one side. Fig.

v is an elevat-ionj'oftheoppositeside. Fig. 31 is an elevationfof thegright hand end of Fig. 1. Fig. 4: isanelevationioftheleft hand machine.Figs. 6, 7 and8 are plans anda" sectional elevation ofuthescouringappara; .1 tus. Fig.8 is a sectional elevation of the j jscreenshowing its internal construction, the .-crown.wheel by? whichiit isdrivenan d the {friction rollers upon which it runs.

3 same letters referring to like parts in all i H As it is in generaldesigned to connect this machine with a screening machine, I havethereto. .Thenature; of

"showu and described the latter for conven I g iencesakeybutdonotconsider the present application for Letters Patent to applyinvention it consists in certain; new methods of constructing andarranging teeth or heaters in scouring, ma- "chines wltli lndla.ILlbbBI'or gutta percha scrolls and: sucking blasts whereby the grain iseffectually cleansedfrom all impurities in i amuch more perfect"rnannerandwith much greater easejthanL byjfthe means hitherto in Touenableothers shilled in the art to understand, make and use my invention Iproceed to? describe 1 its. construction and op:

. {eration,whichniaybest 'be done. by detailing" :the various operationswhich the wheat undergoes' from its entrance into the machine toits exittherefrom,;j i w a a .1: The wheat as it comes from the separatorIpassesinto thejspoutfA and through it into the screenfl During itspassage through the pipeA it is subjected to ablast passing through thepipe B which clears it of chaff, white-caps, etc. The screening processis performed by a fcombihatiOn of. several concentric screens connectedtogether and re -volving uponfthe friction rollers r, 7,Fig.

.3). o (Fig. 9) isa groove in which another and corresponding set offriction rollers work.

The inner screen C is formed of sheet metal and is inclined at a slightangleso that the end opposite to that at which the wheat enters is thelowest. The wheat will conse .que ntly roll down the innerscreen,-passing through the holes therein, while all large bodies suchas nails, wheatears, etc., being too large to pass these holes, willroll down to the lower end of this screen and there pass ofi' by thespout s. The inner screen passes through the wheel w by which the wholescreen is revolved, and in order to make a sufli'ciently tight joint inthe case for directing all the dirt to the spout s'there is a hoop.Ouflange attached to this wheelor to the frame to which itis attached,which hoop fits and revolves within another xhoop (71.) attached to theouter case of the screen.

I, It is evident that as the whole screen revo'lves the wheat whichfalls through the holes in the inner screen near its entrance willpartially fall back and through the same screen. This is prevented inthelatter portion of its descent by the mode of punching the holes in thescreen, the metal not being cut away but simply cut on threesides andraised as will easily be seen from the drawing, Fig. 9; Theholes 'are'there seen covered by. a kind of valves which while they permit the'freeexit of the wheat efi'ec- ,tuallyprevent itsret-urn as it fallsfrom the upper side of the second screen. After passing through thefirst screen the wheat, now separated from all the grosser impuritiesbut 'stillmixed with small seeds, chess, etc., falls on to a secondscreen revolving exteriorly to the first. This screen is conical to sucha degree that the underside thereof forms an inclined plane of about thesame depression.

. as the first screen but reversed, notwithstanding the contraryinclination of its axis. "For a certain portion of its length toward theleft hand (as seen in the drawing, Figs. 2 and 9) the holes in thisscreenare so small "as to prevent thepassage of the wheat but allow alllesser impurities free egress. These lesser seeds and impurities arecaught by theconical sheet D which has no holes but carries everythingthat falls on itto the.

holes or slots d, d, in the end of the screen, vwhichholes or slots leadto the chamber E (Fig. 9), whence everything passesoif by the spout S.Toward the lower portion of the second screen, however, immediatelybeyond the point of junction of the conical sheet D, the holes are madelarger and are covered by the same valve-like coverings used in thefirst cylindrical screen. The wheat passing through these holes andprevented from returning by the valve-like coverings falls on to thefine-cylindrical screen seen exterior to all the others. This screenbeing cylindrical and its axis having an inclination corresponding tothat of the inner cylindrical screen, the wheat will roll along it untilit reaches the end opposite to that at which it entered, and passing outat the point G into the spout I (seen in Figs. 1, 3, and 9) passes intothe scouring machine. All small seeds and lesser impurities meanwhilepassing through the exterior screen on to the sheet K and thence intothe spout L L which carries them to any proper receptacle. \Vhilepassing through the internal cylindrical screen the wheat is subjectedto the action of a blast from the fan which enters by the pipe Q andpasses out at the spout R. A damper or hinged apron may be placed inthis spout so as to return the dirt and light grain to the chamber T.

The scouring apparatus consists of a series of two or more hollowconical pustia having spring teeth formed and attached as shown insectional elevation in Fig. 6 and in plan in Fig. 7, These teeth areformed of thin sheet steel curved and attached as there shown; some ofthese teeth are formed similar to a rasp as there shown; others arearmed with pointed teeth while some are quite plain. The concave also isprovided with teeth or beaters cast thereon or-formed of suitablematerial and attached thereto and against which the wheat is rubbed orscraped by the spring teeth on the convex. The wheat passes from thespout I into the top of the scouring machine, being subjected in itspassage to another blast derived from the box H above the fan andpassing along the pipe F. The wheat is driven by centrifugal force overthe plate and thence down the sides between the concave and convexcones. As it is here that the smut-balls are broken and the dust removedfrom the ends of the berries, and as it is essential that this dustshould be immediately removed I suck the air through the holes in thetop of the smut mill down between the concave and convex and through aseries of small holes in the said convex (to which the spring teeth areattached)too small to permit the passage of the wheat. The air thuscarries all dust and dirt down the central pipe and along the tube P(seen in red lines in Fig. 1) to the fan.

The teeth or beaters on the concave may be serrated as in X (Fig. 6) orplain as seen on the opposite side.

After passing between the two cones and having the loose smut and dustremoved by the action of the sucking blast the wheat descends to thescouring plate (n) across which it is scrolled to the center by thespiral scroll .2) formed of gutta percha or indiarubber. This scrollexerts a further wiping action on the wheat and delivers it on to theupper plate of the next scouring machine whence it is driven bycentrifugal force to the next series of teeth and heaters and afterpassing through the same process as formerly described it is deliveredby another scroll through the aperture U into the spout g. The lastscroll is shown in plan in Fig. 8 where the brown color shows the indiarubber. In passing through the spout g the wheat is again subjected tothe action of a sucking blast which passes through the tube (it) andinto the top of the tan through the square pipe (t). The air being drawnover and around the bent sheet (N) in the tube (M) the light grain &c.will chiefly fall to the bottom of this tube and when it hasaccummulated sufficiently will overcome the spring, open the trap dooror valve and esca e.

The air which passes through the pipe (it) is admitted through theaperture (6) which when no wheat is passing is closed by the plate thesquare pipe (P) are shown in red lines Fig. 6). But the weight of thewheat lying on the valve (3 will press down the spring seen below it andwill not only open a passage for the wheat but will also admit airthrough the aperture (6) by lowering the plate The spring is regulatedby a screw shown beneath it.

I will now proceed to describe the mode of operating the machine andthose details which have not been hitherto noticed.

A band from any convenient source of power passing around the pulley (l)on the shaft (2), which passes through the scouring machine, will causeit to revolve and give motion to the fan through a band passing over thepulleys and (4).

A pinion (5) on the shaft (2) drives the crown wheel which is seenattached to the screen in Fig. 9;

(6) Fig. 4 is a spring valve to regulate the blast passing through thepipe.

(7 is a screw for raising and lowering the bridge tree upon which theshaft (2) rests. By these means the scouring teeth and india rubberscroll are brought to bear more heavily on the wheat which may be donewithout any danger of bruising the berries as the spring teeth and indiarubber scroll are yielding. The india rubber is attached to the underplate by means of sheetiron flanges as will be easily understood fromthe drawing. The screens are best constructed in two halves so as toslip out between the ends.

(Those parts which lie behind 9 5 I ls a valve regulating lated by thebridge-tree for the purpose and the fbrcebf the blast in thepipe F. inthe manner substantially as described.

*QHaVing thus described my invention What l )I cla-im th ereines new anddesire t0, secure TTRIMMER' 5 by Letters Patent is Signed in presence0f'- T The eonst rue tloniandgarrehgefiient ofehe JOHN PHIN, ll'ldifl"rubber screllland spring teeth regu JAS. M. CUYKENDALL.

